plugins/org.eclipse.egf.pattern.ui/src/org/eclipse/egf/pattern/ui/editors/providers/MethodsTableObservableListContentProvider.java

package org.eclipse.egf.pattern.ui.editors.providers;

import org.eclipse.egf.pattern.ui.PatternUIHelper;
import org.eclipse.egf.pattern.ui.editors.adapter.RefresherAdapter;
import org.eclipse.emf.common.notify.impl.AdapterImpl;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.widgets.TableItem;

public class MethodsTableObservableListContentProvider extends ObservableListContentProvider {

    private TableViewer tableViewer;

    protected AdapterImpl refresher;

    public MethodsTableObservableListContentProvider(TableViewer tableViewer, int patternMethodsNum) {
        super(patternMethodsNum, tableViewer);
        this.tableViewer = tableViewer;
        refresher = new RefresherAdapter(tableViewer);
        addDisposeListener();
    }

    private void addDisposeListener() {
        tableViewer.getTable().addDisposeListener(new DisposeListener() {

            public void widgetDisposed(DisposeEvent e) {
                TableItem[] items = tableViewer.getTable().getItems();
                for (TableItem item : items) {
                    Object object = item.getData();
                    PatternUIHelper.removeAdapter(object, refresher);
                }
            }
        });
    }
}